Rails - Oct 2010 - How to create a better flash error message

Currently, my flash message looks like this: "Attend was not created.
{:user_id=>["You are already attending this event"]}"

How can i make it return: "Attend was not created. You are already
attending this event"

Controller / def create:

     if @attend.save
       ...
     else
       format.js   { flash[:notice] = "Attend was not created.
#{@attend.errors}" }
     end

------------

Model:

class Attend < Interaction
  validate :attends_have_to_be_unique

  def attends_have_to_be_unique
    unless Interaction.where(:user_id => self.user.id, :type =>
''Attend'').blank?
      errors.add(:user_id, "You are already attending this event")
    end
  end
end

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The closest I''ve gotten to was:

format.js   { flash[:notice] = "Attend was not created.
#{@attend.errors[:user_id]}" }

which returns: Attend was not created. ["You are already attending
this event"]

Would be good, without the [""]

On Oct 21, 4:43 pm, Christian Fazzini
<christian.fazz...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Currently, my flash message looks like this: "Attend was not created.
> {:user_id=>["You are already attending this event"]}"
>
> How can i make it return: "Attend was not created. You are already
> attending this event"
>
> Controller / def create:
>
>      if @attend.save
>        ...
>      else
>        format.js   { flash[:notice] = "Attend was not created.
> #...@attend.errors}" }
>      end
>
> ------------
>
> Model:
>
> class Attend < Interaction
>   validate :attends_have_to_be_unique
>
>   def attends_have_to_be_unique
>     unless Interaction.where(:user_id => self.user.id, :type =>
> ''Attend'').blank?
>       errors.add(:user_id, "You are already attending this
event")
>     end
>   end
> end
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